Cirsium hillii (Canby) Fernald. Common name: Hill's Thistle. Phenology: Jun-Aug. Habitat: Dry prairies, glades and barrens over calcareous substrates. Distribution: ON, MI, WI, and MN south to wc. IN, c. IL, and ne. MO.
Origin/Endemic status: Native
Synonymy ⓘ: = C, F, K4, Mi, Oh3; = Cirsium pumilum (Nutt.) Spreng. var. hillii (Canby) Boivin — FNA19, Il, POWO. Basionym: Cnicus hillii Canby 1891
Links to other floras: = Cirsium pumilum var. hillii - FNA19
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Heliophily ⓘ: 9
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Horticultural Information
No horticultural data found for this taxon.